Head phone



FIG. 1 is a front, top and left side perspective view of a head phone showing my new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a head phone, as shown. 